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Topic: [Questions] Ionic Equilibria  (Read 4355 times)

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ice888

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[Questions] Ionic Equilibria
« on: September 01, 2005, 03:24:07 AM »
Hello, i've been going through some questions and i am stuck with this

What is the solubility product of silver chromate, Ag2CrO4, give that its solubility is 8.43x10-5 mol dm-3.

My steps are,
Ksp=
(Ag+)2(CrO42-) =
(8.43x10-5)3 =
5.99 x 10-13 mol3dm-9

But the printed answer is 2.4x10-12 mol3dm-9
What did I do wrong? Please advise.  :D
« Last Edit: September 01, 2005, 03:36:35 AM by ice888 »
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Offline Borek

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Re:[Questions] Ionic Equilibria
« Reply #1 on: September 01, 2005, 03:34:49 AM »
What is concentration of Ag+ in saturated solution? Think about stoichiometry.
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ice888

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Re:[Questions] Ionic Equilibria
« Reply #2 on: September 01, 2005, 03:37:54 AM »
oops !  :o now i get it...thank you !
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